Rane AD 22d Audio Delay data sheet - Talamas
Rane AD 22d Audio Delay data sheet - Talamas
Rane AD 22d Audio Delay data sheet - Talamas
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DATA SHEET<br />
<strong>AD</strong> <strong>22d</strong><br />
AUDIO DELAY<br />
SENSITIVITY<br />
1 2<br />
SENSITIVITY<br />
-10 dBV -10 dBV<br />
-8<br />
-8<br />
-4 -12<br />
-4 -12<br />
0 -16<br />
0 -16<br />
+4 -20<br />
+4 -20<br />
dBu<br />
dBu<br />
1<br />
BYPASS<br />
2 A B 1 2 DISPLAY<br />
MODE<br />
STORE RECALL<br />
CHAN<br />
MILLISECONDS<br />
FEET<br />
METERS<br />
260.45<br />
1 ms 10 μs<br />
COARSE<br />
FINE<br />
<strong>AD</strong> <strong>22d</strong><br />
AUDIO DELAY<br />
SIGNAL<br />
CLIP<br />
SIGNAL<br />
CLIP<br />
MEMORY<br />
HOLD TO SET TEMP<br />
°C °F<br />
General Description<br />
The <strong>Rane</strong> <strong>AD</strong> <strong>22d</strong> is a fully balanced two Input, two Output<br />
audio alignment <strong>Delay</strong> providing a range of 1.50 to 999.99 milliseconds<br />
on each Output. The <strong>Delay</strong> of each Output is independently<br />
adjustable in 10 microsecond and 1 millisecond increments.<br />
24-bit audio converters provide excellent sound quality.<br />
Each Output has two nonvolatile Memories (no batteries<br />
required), A and B, for easy access to previously stored <strong>Delay</strong><br />
values. Remote Recall screw terminals on the rear accept external<br />
configuration switches, permitting independent remote recall of<br />
the Memories.<br />
The <strong>AD</strong> <strong>22d</strong> features XLR Inputs and Outputs, and is CE<br />
certified for emissions. Housed in a single rack space, the unit<br />
can operate as two independent channels (dual mono), or as a<br />
stereo pair (edit both channels simultaneously).<br />
<strong>Delay</strong> values can be displayed in milliseconds, feet or meters.<br />
The ambient temperature of the room may be manually entered<br />
in degrees Celsius or Fahrenheit. This temperature is used to accurately<br />
convert distance into time.<br />
A recessed rear panel switch is available for locking out front<br />
panel controls. In this mode, all of the front panel pushbuttons<br />
are disabled with the exception of the Channel select and Display<br />
Mode buttons. The Channel button remains active so the<br />
user may view the <strong>Delay</strong> values without risk of changing them,<br />
and the Display Mode button allows displaying the <strong>Delay</strong> values<br />
in milliseconds, feet or meters. Internal jumpers are available to<br />
enable or disable Bypass while in Front Panel Lockout mode. The<br />
default setting of these jumpers disables Bypass in Front Panel<br />
Lockout mode.<br />
Independent bypass relays provide a fail safe, hard-wired<br />
bypass in case of power loss.<br />
The <strong>AD</strong> <strong>22d</strong> is a unity gain device with Sensitivity controls<br />
to provide proper internal levels for the audio converters. If the<br />
input signal is nominally +4 dBu, set the Sensitivity control fully<br />
counter clockwise (+4 dBu). For those unable to touch a cable<br />
and determine its signal level, Signal present and Clip indicators<br />
provide visual acknowledgment that the Input signal is within<br />
optimal range.<br />
Powered from a low voltage UL listed and CSA certified<br />
remote power supply (230 VAC supply meets LVD 73/23/EEC),<br />
the <strong>AD</strong> <strong>22d</strong> is exempt from safety agency requirements, and may<br />
be used in any installation mandating agency compliance.<br />
Features<br />
• 1.50 to 999.99 ms <strong>Delay</strong> Range per Channel<br />
• Two Independent Channels (2 In - 2 Out)<br />
• Independent 10µs and 1ms Step Sizes<br />
• Independent Remote Memory Recall<br />
• Two EEPROM Memories per Channel (No Batteries)<br />
• Front Panel Lockout Switch on Rear<br />
• <strong>Delay</strong> Display in Milliseconds, Feet or Meters<br />
• Fail-Safe Bypass for Each Channel<br />
• Active Balanced XLR Inputs & Outputs<br />
• UL/CSA/CE and 100/120/230 VAC Remote Power Supplies<br />
Data Sheet-
<strong>AD</strong> <strong>22d</strong><br />
AUDIO DELAY<br />
Features and Specifications<br />
Parameter Specification Limit Units Conditions/Comments<br />
<strong>Delay</strong> Range 1.50 to 999.99 1% msec<br />
..........Increment Size 0.01 and 1.00 msec Independently controllable<br />
..........Readout<br />
5 digit LED<br />
Propagation <strong>Delay</strong> 1.50 1% msec<br />
Sampling Frequency 50k Hz<br />
Data Conversion 24 bit<br />
Input & Output Connectors XLR<br />
Inputs: Type<br />
Active balanced<br />
..........Impedance 25k 1% Ω balanced<br />
..........Headroom 16 above Sensitivity setting 2 dB 20 Hz - 8 kHz<br />
..........Max Level 20 dBu 1 kHz with Sensitivity at +4 dBu<br />
Outputs: Type<br />
Active balanced cross-coupled<br />
..........Impedance 200 1% Ω balanced<br />
..........Max Level 20 (>2k ohm); 18 (>600 ohm) dBu 1 kHz with Sensitivity at +4 dBu<br />
Overall System Gain 0 ±1 dB<br />
Output Relays Yes Auto-bypass with power loss<br />
LED Thresholds: Clip 4 before converter overload 1 dB 1 kHz<br />
..........Signal Present -34 below Clip LED 1 dB 1 kHz<br />
Frequency Response 20 Hz - 22 kHz +0/-0.5 dB +4 dBu, Sens@+4<br />
THD + Noise 0.05 .01 % +4 dBu, Sens@+4, 20-20k, 30k Hz BW<br />
Signal-to-Noise Ratio 85 2 dB +4 dBu, Sens@+4, 20 Hz - 20 kHz<br />
Dynamic Range 101 2 dB +4 dBu, Sens@+4, 20-20k, A-weighted<br />
Crosstalk >90 dB 20-20 kHz, +4 dBu, Sens @ +4 dBu<br />
Unit: Agency Listing<br />
..........120 VAC model Class 2 Equipment National Electrical Code<br />
UL & CSA<br />
Exempt Class 2 equipment<br />
..........230 VAC model Certified FCC Part 15J Class B Device<br />
Power Supply: Agency Listing<br />
..........120 VAC model UL File no. E88261<br />
CSA<br />
File no. LR58948<br />
..........230 VAC model CE-EMC EMC directive 89/336/EEC<br />
CE-Safety<br />
LV directive 73/23/EEC<br />
Power Supply Requirement 18 VAC w/center tap 0.1 Vrms <strong>Rane</strong> RS 1<br />
..........Maximum Current 650 mA RMS current from remote supply<br />
Unit: Construction<br />
All Steel<br />
..........Size 1.75"H x 19"W x 8.5"D (1U) (4.4 cm x 48.3 cm x 21.6 cm)<br />
..........Weight 6 lb (w/o power supply) (2.7 kg)<br />
Shipping: Size 4.25" x 20.3" x 13.75" (11 cm x 52 cm x 35 cm)<br />
.........Weight 10 lb (4.5 kg)<br />
Note: 0 dBu=0.775 Vrms<br />
Data Sheet-
<strong>AD</strong> <strong>22d</strong> Block Diagram<br />
Channel 1 Shown, Channel 2 Identical<br />
SIGNAL<br />
CLIP<br />
BYPASS<br />
INPUT<br />
2<br />
1<br />
3<br />
RFI<br />
FILTER<br />
0dB<br />
+ -12dB<br />
SIGNAL / CLIP<br />
SENSE<br />
SENSITIVITY<br />
A/D<br />
D/A<br />
+ -12dB<br />
+<br />
0 dB<br />
-<br />
BYPASS<br />
RELAY<br />
OUTPUT<br />
3<br />
1<br />
2<br />
CH 1<br />
CH 2<br />
DSP<br />
GND<br />
REMOTE<br />
LOCKOUT<br />
Application Information<br />
FRONT<br />
PANEL<br />
CONTROLS<br />
SENSITIVITY<br />
To ensure optimal performance, adjust the Sensitivity control<br />
so its indicator points to the nominal input signal level. Signal<br />
present and Clip indicators provide verification that the signal is<br />
within the optimal range. The Sensitivity control adjusts the input<br />
and output signal so that the <strong>AD</strong> <strong>22d</strong> is always at unity gain.<br />
SETTING DELAY<br />
There are two modes for setting <strong>Delay</strong> in the <strong>AD</strong> <strong>22d</strong>: setting<br />
one channel at a time and setting both channels simultaneously.<br />
To set a single channel’s <strong>Delay</strong>, press the Channel button until<br />
the LEDs indicate the Channel you want to set (1 or 2). Then<br />
press the up/down buttons until the display shows the desired<br />
<strong>Delay</strong>. When editing both channels simultaneously (both Channel<br />
1 and 2 LEDs on), the display shows the smaller of the two<br />
current <strong>Delay</strong> values. In this mode, the two current <strong>Delay</strong> values<br />
are “locked” together. Adjusting the up/down buttons changes<br />
both values by the same relative amount. The edit both mode<br />
allows easy stereo editing and also allows both drivers of a prealigned<br />
cluster to be moved forward or backward simultaneously.<br />
STORING DELAY<br />
Press the Store button. This stores both current <strong>Delay</strong> values<br />
into each channel's current Memory. A channel's current<br />
Memory is indicated by the Memory LED lit when editing that<br />
channel. The Store LED stops flashing when the current <strong>Delay</strong><br />
values match the stored values.<br />
PROM<br />
AND<br />
EEPROM<br />
RECALLING DELAY<br />
Pressing the Recall button alternately recalls stored Memories<br />
(A then B then A…) for the selected channel(s) only.<br />
DELAY<br />
MEMORY<br />
SETTING TEMPERATURE<br />
Hold down Display Mode and press the up/down buttons to<br />
edit the <strong>AD</strong> <strong>22d</strong>’s temperature setting. The 1 ms/Coarse buttons<br />
display temperature in degrees Celsius, the 10µsec/Fine buttons<br />
display degrees in Fahrenheit. No matter which unit (°C or °F),<br />
adjustments are always in 1°C steps (or 1.8°F). The <strong>AD</strong> <strong>22d</strong> does<br />
not change the current <strong>Delay</strong> times for different temperature settings;<br />
only the displayed distance values are altered. (See example<br />
below.)<br />
REMOTE RECALL<br />
A switch wired to the Remote Recall terminals allows remote<br />
recall of stored Memories for each channel. Wire directly to a<br />
room divider latch to automatically recall the two room configurations.<br />
Or store one Memory with the speaker stack’s distance<br />
at one temperature and store the other Memory with the stack’s<br />
distance at another temperature. Then, during the warmer part<br />
of the day, restore the warmer temperature.<br />
For example, set up the initial temperature for 71.6°F (the<br />
default), and set the stack’s distance for 250.00 feet. Press Store<br />
to save this value in Memory A (250.00 feet at 71.6°F is 220.85<br />
msec). Then change the temperature setting to 100°F, and we’re<br />
in Arizona. Notice that the current distance changes to 257.11<br />
feet, but the current <strong>Delay</strong> time is still 220.85 msec. Now, edit the<br />
current value for 250.00 feet (still your stack’s distance). Press<br />
Store to save this value in Memory B (250.00 feet at 100°F is<br />
214.74 msec.) Now Memory A has the proper value for the stack<br />
at 71.6°F (220.85 msec/250 ft.), and Memory B has the value for<br />
100°F (214.74 msec/250 ft.).<br />
Data Sheet-
<strong>AD</strong> <strong>22d</strong><br />
AUDIO DELAY<br />
Rear Panel<br />
OPEN<br />
REMOTE RECALL<br />
MEM A<br />
POWER<br />
CLOSED<br />
MEM B<br />
650mA<br />
CH1 CH2 GND<br />
CLASS 2 EQUIPMENT<br />
CH 2 OUT<br />
CH 2 OUT<br />
CH 2 IN<br />
CH 2 IN<br />
CH 1 OUT<br />
CH 1 OUT<br />
CH 1 IN<br />
CH 1 IN<br />
BALANCED WIRING:<br />
PIN 2 POSITIVE<br />
PIN 3 NEGATIVE<br />
PIN 1 CHASSIS GND<br />
REMOTE RECALL PORT:<br />
5 VOLT SOURCES 0.5 mA<br />
CMOS SCHMITT TRIGGER INPUTS<br />
THIS DEVICE COMPLIES WITH PART 15 OF THE FCC<br />
RULES. OPERATION IS SUBJECT TO THE FOLLOWING<br />
TWO CONDITIONS: (1) THIS DEVICE MAY NOT CAUSE<br />
HARMFUL INTERFERENCE, AND (2) THIS DEVICE MUST<br />
ACCEPT ANY INTERFERENCE THAT MAY CAUSE<br />
UNDESIRED OPERATION.<br />
<strong>AD</strong> <strong>22d</strong><br />
M<strong>AD</strong>E IN U.S.A.<br />
RANE CORP.<br />
ACN 001 345 482<br />
Architectural Specifications<br />
The digital audio delay unit shall be a single rack space, two<br />
input, two output configuration. The delay adjustment range<br />
shall be from 1.50 to 999.99 ms, adjustable via increment/decrement<br />
pushbuttons, in both 10 microsecond and 1 millisecond<br />
intervals. Independent remote recall terminals shall be provided<br />
for external recall of stored configuration memories, two per<br />
channel. A five (5) digit LED display shall indicate delay values<br />
in milliseconds, feet or meters as well as temperature setting and<br />
software revision level. Bypass status, current memory, channel,<br />
and display modes shall be indicated with individual indicators.<br />
A recessed rear-panel switch shall disable the front panel, yet<br />
still allow viewing of delay values.<br />
Independent input-output sensitivity controls shall be<br />
included to allow calibration of the input signal for maximum<br />
performance. The inputs and outputs shall be active balanced<br />
with XLR connectors. Each channel shall have indicators for<br />
signal present and input/output clip conditions.<br />
The unit shall provide independent, fail-safe bypass relays<br />
requiring no power to engage. RFI filters shall also be provided.<br />
The unit shall have certified compliance with FCC docket<br />
20780 Part 15J for Class B computing devices. The <strong>AD</strong> <strong>22d</strong> shall<br />
comply with EMCD 89/336/EEC (CE approved). The 120 VAC<br />
model shall be powered from a UL listed, CSA certified remote<br />
power supply, and the 230 VAC model shall be powered from<br />
a remote power supply meeting LVD 73/23/EEC and EMCD<br />
89/336/EEC standards. The unit shall be constructed entirely<br />
from cold-rolled steel.<br />
The unit shall be a <strong>Rane</strong> Corporation <strong>AD</strong> <strong>22d</strong>.<br />
References<br />
1. Shaw, N. “Digital <strong>Delay</strong>s, Parts One, Two & Three,” Sound & Communications, vol. 39, nos. 3, 5 & 10, (March, May, & October 1993).<br />
2. Bohn, D. “Environmental Effects on the Speed of Sound,”J. <strong>Audio</strong> Eng. Soc., vol. 36, pp. 223-231 (April 1988).<br />
©<strong>Rane</strong> Corporation 10802 47th Ave. W., Mukilteo WA 98275-5098 TEL 425-355-6000 FAX 425-347-7757 WEB www.rane.com<br />
Data Sheet- All features & specifications subject to change without notice. DOC 103488